Description: This report provides background information and issues for Congress on the modernization of the Coast Guard's polar icebreaker fleet, which performs a variety of missions supporting U.S. interests in polar regions.

Description: The planned size of the Navy, the rate of Navy ship procurement, and the prospective affordability of the Navy's shipbuilding plans have been matters of concern for the congressional defense committees for the past several years. The Navy's proposed FY2012 budget requested funding for the procurement of 10 new battle force ships. Issues for Congress include the appropriate future size and structure of the Navy in light of changes in strategic and budget circumstances, the sufficiency of the Navy's FY2012 30-year shipbuilding plan for achieving and maintaining the Navy's 313-ship goal, and the affordability of the FY2012 30-year shipbuilding plan.

Description: On December 2, 2011, General Electric and Rolls-Royce announced that they were ending development of the F136 alternate engine for the F-35, ending what had been a contentious and long-running battle of funding versus research and development. This report discusses issues of having only one engine supplier for the F-35, as well as funding issues for the program.

Description: This report discusses the past four years of administration proposals to terminate the program to develop the General Electric/Rolls-Royce F136 engine as an alternative to the Pratt & Whitney F135 engine that currently powers the F-35 Joint Strike Fighter (JSF). These proposals have been continually rejected by Congress. The Obama Administration's FY2011 budget submission against proposes to terminate the program. This report explores both sides of the termination argument.

Description: Alternative fuels and advanced technology vehicles are seen by proponents as integral to improving urban air quality, decreasing dependence on foreign oil, and reducing emissions of greenhouse gases. However, major barriers—especially economics—currently prevent the widespread use of these fuels and technologies. The 112th Congress has debated alternative fuels and advanced technology vehicles directly and as it has addressed other key topics. On June 16, 2011 the Senate approved S.Amdt. 476 which would have eliminated the excise tax credit for blending ethanol in gasoline before its December 31, 2011 expiration date. Although the underlying legislation failed a cloture vote in the Senate, the amendment was approved 73-27. The prospects for further action increasing or extending biofuels and alternative fuels tax incentives may be limited in light of that vote.

Description: Some officials of the Islamic Republic of Iran have recently renewed threats to close or exercise control over the Strait of Hormuz. This report explains Iranian threats to the Strait of Hormuz, and analyzes the implications of some scenarios for potential U.S. or international conflict with Iran, which include: outright closure of the Strait, harassment and/or infrastructure damage, and continued threat.

Description: This report reviews those legal issues. First, it suggests that legislation related to cross-border facility permitting is unlikely to raise significant constitutional questions, despite the fact that such permits have traditionally been handled by the executive branch alone pursuant to its constitutional "foreign affairs" authority. Next, it observes generally that state oversight of pipeline siting decisions does not appear to violate existing federal law or the Constitution. Finally, the report suggests that State Department's implementation of the existing authority to issue presidential permits appears to allow for judicial review of its National Environmental Policy Act determinations.

Description: This report provides background information and oversight issues for Congress on the Virginia class nuclear-powered attack submarine (SSN) program. The two Virginia-class boats requested for procurement in FY2013 are the final two in a group of eight covered by a multiyear procurement (MYP) arrangement for the period FY2009-FY2013. Issues for Congress include whether or not to approve the MYP arrangement request, whether to restore procurement of a second Virginia-class boat in FY2014, and the Virginia-class procurement rate in general.

Description: Nearly half a million miles of pipeline transporting natural gas, oil, and other hazardous liquids crisscross the United States. While an efficient and fundamentally safe means of transport, many pipelines carry materials with the potential to cause public injury and environmental damage. The nation's pipeline networks are also widespread and vulnerable to accidents and terrorist attack. As it oversees the federal pipeline safety program and the federal role in pipeline security, Congress may wish to assess how the various elements of U.S. pipeline safety and security fit together in the nation's overall strategy to protect transportation infrastructure. Pipeline safety and security necessarily involve many groups: federal agencies, oil and gas pipeline associations, large and small pipeline operators, and local communities. Reviewing how these groups work together to achieve common goals could be an oversight challenge for Congress.

Description: Crime is ordinarily proscribed, tried, and punished according to the laws of the place where it occurs. American criminal law applies beyond the geographical confines of the United States, however, under certain limited circumstances. A surprising number of federal criminal statutes have extraterritorial application, but prosecutions have been few. This may be because when extraterritorial criminal jurisdiction does exist, practical and legal complications, and sometimes diplomatic considerations, may counsel against its exercise.